4.5 pounds of sunlight strike the Earth each day.
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Scientists at the Zhejiang University in China have developed an ultra-light material known as carbon aerogel.
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Because heat expands the metal, the Eiffel Tower always leans away from the sun.
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Most dust particles in your house are made from dead skin!
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Cold water weighs more than hot water.
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There are more than 270 people cryogenically frozen in the hope that one day the technology will exist that can revive them and extend their lives.
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